Influence of biomarkers level during follow-up when operating under cardiopulmonary bypass

Systemic inflammatory response was first determined in 1980 and cardiac surgeons turned to it in 1996. At present, there are a lot of publications on this issue, however, the extent of operation and duration of CPB are considered in clinical practice as crucial indicators of severity of patient's condition following cardiac surgery. In our study we tried to look at this problem from a different perspective and draw a parallel between the severity of patient's condition resulting from operational trauma and CPB. We included 48 patients who under-went cardiac surgery under CPB. Plasma levels of procalcitonin (PCT), lactate and interleukin-6 were investigated before the operation, after CPB and at 24 hours. Also revealed was the relationship between the plasma levels of IL-6, lactate and PCT (r = 0.53; p = 0.000 in both cases). The level of PCT at the 3rd stage was found to relate to the duration of CPB (r = 0.4; p = 0.005), ALV (r = 0.44; p = 0.001) and length of stay at ICU (r = 0.53; p = 0.000). We didn't manage to find any relationship between the length of stay at ICU and the duration of CPB. Correlation between the PCT plasma level and the duration of intensive care indicates the importance of dynamics of the given biomarker for early prediction of follow-up course after open-heart surgery.